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Installation Guide

OceanStor 5000, 5000F, 6000, and 6000F V5 Series V500R007

This document is applicable to OceanStor 5110 V5, 5110F V5, 5300 V5, 5300F V5, 5500 V5, 5500F V5, 5600 V5, 5600F V5, 5800 V5, 5800F V5, 6800 V5, and 6800F V5 storage systems. It describes hardware installation of those storage systems for helping you easily and quickly finish the installation.
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Preparing External Power Cables and Ground Cables with OT Terminals

Preparing External Power Cables and Ground Cables with OT Terminals

This section describes how to prepare external power cables and ground cables with OT terminals.

Recommended Tools and Materials

The recommended tools and materials for preparing external power cables and ground cables with OT terminals are as follows:

Tools:

  • Power cable crimping tool
  • Hydraulic pliers
  • Box cutter
  • Diagonal pliers
  • Wire clipper
  • Heat gun

Materials:

  • Power cables
  • Insulation tape
  • OT terminals
  • Heat shrink tube

Procedure

  1. Peel off a section of the insulation layer C from the power cable based on the cross-sectional area of the power cable conductors. A section of power cable conductor D with a length of L1 is exposed, as shown in Figure E-17. Table E-3 lists the recommended lengths of the insulation layer to be peeled off (L1).

    Figure E-17 Peeling off the insulation layer of the power cable

    • When peeling off the insulation layer of the power cable, take care not to scratch the conductor of the power cable.
    • You can adjust L1 according to the length of the OT terminal. L1 = L + (1 to 2) mm (1 mm = 0.0394 in.).
    Table E-3 Mapping between the cross-sectional area and the length of the insulation layer to be peeled off (L1)

    Cross-Sectional Area

    L1

    1 mm2 (0.0015 in.2)

    7 mm (0.2758 in.)

    1.5 mm2 (0.0023 in.2)

    7 mm (0.2758 in.)

    2.5 mm2 (0.0039 in.2)

    7 mm (0.2758 in.)

    4 mm2 (0.0062 in.2)

    8 mm (0.3152 in.)

    6 mm2 (0.0093 in.2)

    9 mm (0.3546 in.)

    10 mm2 (0.0155 in.2)

    11 mm (0.4334 in.)

    16 mm2 (0.0248 in.2)

    13 mm (0.5122 in.)

    25 mm2 (0.0387 in.2)

    14 mm (0.5516 in.)

    35 mm2 (0.0542 in.2)

    16 mm (0.6304 in.)

    50 mm2 (0.0775 in.2)

    16 mm (0.6304 in.)

    NOTE:

    Engineers can determine the length of insulation layer to be peeled off by comparing the cable with the connector to be crimped.

  2. Insert the power cable into the heat shrink tube A, as shown in Figure E-18.
  3. Insert the bare conductor of the power cable into the OT terminal B, and then press the OT terminal close to the insulation layer C, as shown in Figure E-18.

    Figure E-18 Installing the heat shrink tube and OT terminal

    After the OT terminal is installed, the length of the bare conductor outside the OT terminal (L2) cannot be larger than 2 mm (0.0788 in.). If L2 is larger than 2 mm (0.0788 in.), cut the excess by using the diagonal pliers or wire clipper, as shown in Figure E-18.

  4. Use the power cable crimping tool to clamp the tail of the OT terminal and the contact part of the conductor, as shown in Figure E-19.

    Figure E-19 Clamping the tail of the OT terminal with the contact part of the conductor

    NOTE:

    The crimped shape varies with the crimping mold.

  5. Push the heat shrink tube A toward the OT terminal, and cover the crimping area of the OT terminal and the conductor. Use a heat gun to heat the heat shrink tube, as shown in Figure E-20.

    Stop heating the heat shrink tube once the cable is wrapped by it tightly. Excessive heat may damage the insulation layer of the cable.

    Figure E-20 Installing the heat shrink tube

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Updated: 2019-07-11

Document ID: EDOC1000181531

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